Determination of the beam profile for the Herschel-SPIRE Imaging Fourier Transform Spectrometer

2013 ◽  
Author(s):  
Gibion Makiwa ◽  
David A. Naylor ◽  
Marc Ferlet ◽  
Carl Salji ◽  
Bruce Swinyard ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Beam Profile ◽  
Fourier Transform Spectrometer

H218O: line positions and intensities between 9500 and 11 500 cm−1. The (041), (220), (121), (300), (201), (102), and (003) interacting states

1987 ◽  
Vol 65 (7) ◽  
pp. 777-789 ◽  
Author(s):  
J. -P. Chevillard ◽  
J. -Y. Mandin ◽  
J.-M. Flaud ◽  
C. Camy-Peyret
Keyword(s):  
Fourier Transform ◽  
Water Vapor ◽  
Energy Levels ◽  
Rotational Energy ◽  
Fourier Transform Spectrometer ◽  
Vibrational States ◽  
Line Intensities ◽  
Line Positions ◽  
Average Uncertainty

The spectrum of 18O-enriched water vapor has been recorded between 9500 and 11 500 cm−1, with the aid of a Fourier-transform spectrometer. Its analysis has allowed the determination of 419 accurate rotational energy levels belonging to seven interacting vibrational states of H218O: (041), (220), (121), (300), (201), (102), and (003). Moreover, 622 line intensities belonging to the 4ν2 + ν3, 2ν1 + 2ν2, ν1 + 2ν2 + ν3, 3ν1, 2ν1 + ν3, ν1 + 2ν3, and 3ν3 bands have been measured with an average uncertainty of 6%.

Beam profile for the Herschel–SPIRE Fourier transform spectrometer

2013 ◽  
Vol 52 (16) ◽  
pp. 3864 ◽  
Author(s):  
Gibion Makiwa ◽  
David A. Naylor ◽  
Marc Ferlet ◽  
Carl Salji ◽  
Bruce Swinyard ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Beam Profile ◽  
Fourier Transform Spectrometer

scholarly journals Comparison of the MIPAS products obtained by four different level 2 processors

2014 ◽  
Vol 56 ◽  
Author(s):  
Piera Raspollini ◽  
Enrico Arnone ◽  
Flavio Barbara ◽  
Bruno Carli ◽  
Elisa Castelli ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Line Of Sight ◽  
Fourier Transform Spectrometer ◽  
Vertical Profiles ◽  
Atmospheric Emission ◽  
Polar Orbit ◽  
Measurement Mode ◽  
Level 2 ◽  
Quantities Of Interest

<p class="Default">MIPAS is a midinfrared Fourier Transform spectrometer that sounded the atmospheric emission at limb onboard the ENVISAT satellite. It was launched on 31 March 2002 in a sun-synchronous polar orbit of about 800 km altitude and operated until 8 April 2012. The limb scanning sequence observed by the instrument is made of spectra that sound the atmosphere at different tangent altitudes (the tangent altitude is the minimum altitude reached by the line of sight and is also the altitude from where most of the observed signal originates). The inversion of the measurements allows the determination of the vertical profiles of the atmospheric quantities of interest in the range of the tangent altitudes covered by the limb scanning sequence, which is 6-70 km for the nominal measurement mode. […]</p>

scholarly journals Calibration and validation of water vapour lidar measurements from Eureka, Nunavut using radiosondes and the Atmospheric Chemistry Experiment fourier transform spectrometer

2012 ◽  
Vol 5 (4) ◽  
pp. 5665-5689 ◽  
Author(s):  
A. Moss ◽  
R. J. Sica ◽  
E. McCullough ◽  
K. Strawbridge ◽  
K. Walker ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Water Vapour ◽  
Atmospheric Chemistry ◽  
Fourier Transform Spectrometer ◽  
Lidar Measurements ◽  
Tropopause Region ◽  
Arctic Atmosphere ◽  
Chemistry Experiment ◽  
Better Than

Abstract. The Canadian Network for the Detection of Atmospheric Change and Environment Canada DIAL lidar located at the Polar Environment Atmospheric Research Laboratory (PEARL) in Eureka, Nunavut has been upgraded to measure water vapour mixing ratio profiles at 150 m vertical resolution. The system is capable of measuring water vapour in the dry arctic atmosphere up to the tropopause region. Measurements were obtained in the February to March polar sunrise during 2007, 2008 and 2009 as part of the Canadian Arctic ACE Validation Campaign. Before such measurements can be used to address important questions in understanding dynamics and chemistry, the lidar measurements must be calibrated against an independent determination of water vapour. Here, radiosonde measurements of relative humidity have been used to calibrate the lidar measurements. It was found that the calibration varied significantly between each campaign. However, the calibration of the lidar during an individual polar sunrise campaign agrees with the local radiosonde measurements to better than 12% below 6 km altitude. To independently validate the calibration of the lidar derived from the radiosondes, comparisons are made between the calibrated lidar measurements and water vapour measurements from the Atmospheric Chemistry Experiment satellite-borne Fourier Transform Spectrometer. The comparisons between the lidar and satellite for both campaign averages and single overpasses show favourable agreement between the two instruments and help validate the comparison with the radiosondes.

RKR Potential, FCF and Mixing Coefficients of the A1 Σu+ and b3Πu States of Na2

1990 ◽  
Vol 45 (6) ◽  
pp. 795-798 ◽  
Author(s):  
O. Babaky ◽  
K. Hussein
Keyword(s):  
Fourier Transform ◽  
Orbit Interaction ◽  
Fourier Transform Spectrometer ◽  
Spin Orbit ◽  
Mixing Coefficients ◽  
Vibrational Levels ◽  
Condon Factors ◽  
Franck Condon ◽  
Potential Curves

AbstractA study of the spin-orbit interaction between the A1Σu+ and b3Πu states of Na2 , based on the collision-induced transitions (2) 1Σ g →A1Σu+ recorded with a high resolution Fourier transform spectrometer, had led to the determination of the deperturbed constants of the A1Σu+ and b3Πu states [1]. From these constants the Rydberg-Klein-Rees (RKR) potential curves for the A1Σu+ (0≦v≦ 15) and b3Πu (0 ≦ v ≦ 25) states and the Franck-Condon factors (FCF) within the range of vibrational levels involved in the interaction of these two states are calculated, together with the mixing coefficients for the pair (A1Σu+)v=4 - (b3Πu)v=10.

scholarly journals Determination of NIR informative wavebands for transmission non-invasive blood glucose measurement using a Fourier transform spectrometer

AIP Advances ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. 035216 ◽  
Author(s):  
Wenming Yang ◽  
Ningfang Liao ◽  
Haobo Cheng ◽  
Yasheng Li ◽  
Xueqiong Bai ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Blood Glucose ◽  
Blood Glucose Measurement ◽  
Glucose Measurement ◽  
Fourier Transform Spectrometer ◽  
Non Invasive

Infrared spectrum and molecular constants of CO2 in the 1.4–1.7 μm atmospheric window by very high resolution Fourier transform spectroscopy

1980 ◽  
Vol 58 (11) ◽  
pp. 1560-1569 ◽  
Author(s):  
J. P. Maillard ◽  
M. Cuisenier ◽  
Ph. Arcas ◽  
E. Arié ◽  
C. Amiot
Keyword(s):  
Fourier Transform ◽  
High Resolution ◽  
Infrared Spectrum ◽  
Accurate Determination ◽  
Spectroscopic Constants ◽  
Fourier Transform Spectrometer ◽  
Molecular Constants ◽  
Atmospheric Window ◽  
Very High

The spectrum of CO2 has been recorded in the 1.4–1.7 μm atmospheric window using the very high resolution Fourier transform spectrometer of the Meudon Observatory. This laboratory study has allowed the accurate determination of the spectroscopic constants previously evaluated from the Venus spectrum.

The first hexad {(040), (120), (021), (200), (101), (002)} of H218O: experimental energy levels and line intensities

1986 ◽  
Vol 64 (6) ◽  
pp. 746-761 ◽  
Author(s):  
J.-P. Chevillard ◽  
J.-Y. Mandin ◽  
C. Camy-Peyret ◽  
J.-M. Flaud
Keyword(s):  
Fourier Transform ◽  
Water Vapor ◽  
Energy Levels ◽  
Fourier Transform Spectrometer ◽  
Vibrational States ◽  
Line Intensities ◽  
Its Analysis ◽  
Experimental Energy

The spectrum of 18O-enriched water vapor has been recorded between 5900 and 8000 cm−1, with the aid of a Fourier-transform spectrometer. Its analysis allowed the determination of 437 accurate rotational levels belonging to the hexad of interacting states {(040), (120), (021), (200), (101), (002)}of H218O. Among these vibrational states, the (040), (120), and (002) ones had never been observed before. Moreover, 726 line intensities belonging to the 4ν2, ν1 + 2ν2, 2ν2 + ν3, 2ν1, ν1 + ν3, and 2ν3 bands have been measured with an uncertainty of 6%.

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